WatchUSeek Watch Forums banner

Help with this ISA 1198?!

1 reading
5.8K views 8 replies 5 participants last post by  BenchGuy  
#1 ·
Dear friends,

There’s a lot of ISA 1198 models, how can I know the exact code of this one? I’m looking another one for replacement. Thank you in advance.

Image

Image

Image
Image
 
#2 ·
Code of the replacement battery? According to this site, the movement uses 395 battery. You also need a battery clamp to secure the cell.
 
#8 ·
What is wrong with the movement? Why not just service it?

That said, it is most likely a /103...this is the "normal" version. In order to determine this, you will have to remove the hands and measure the overall height (or thickness) from the back to the top of the second hand post.

Regards, BG
speaking from my own experience it costs almost the same to replace rather than service in certain cases.
 
#5 ·
Hello, BG!

Movement does not work and I have zero experience with quartz. Anyway, I will disassemble , clean an oil it to see if it’s due to any dirty/mechanical issue but if it’s the circuit or oil I don’t know how to test these parts.

Thank you!
 
#6 ·
Try an electrical test prior to disassembling. No use wasting time on a movement that has completely given up the ghost. That being said, loose/poor contacts and broken windings are the most common electrical problems and they can be solved.

Another though is that, if the electronics checks out, assemble it with just the rotor to see if it will spin the rotor. Do this dry then apply lube. If it stops, you have a lube problem (wrong lube or too much).

Here's the tech sheet http://www.phfactor.net/wtf/ISA/1198-105.pdf but unfortunately doesn't include any diagnostics.

Here's a screenshot of a tech sheet for an ETA 902.002 to give you an idea of what to look for electrically:
Image


BTW, keep the rotor out of the ultrasonic, it'll demagnetize it and ruin it.

Good luck
 
#9 ·

Entry level tester. You can test the battery, the coil, and test for pulse. You can not test rate or current draw.

If the watch pulses, then look to issues with the train...these are usually resolved by cleaning.

In my experience, I can disassemble, clean and lubricate faster than I can order and go to my PO BOX...usually run it through with other watches going through my cleaner. In/out...same charge as movement replacement...no cost for a movement or postage...hands do not require any fitting. My general inclination is to fix first, replace if required.

Regards, BG